agriculture MCQs – Page 133

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

2641. Soil order characterized by excess of weathering with dominant iron and aluminium oxide clays, common in tropics is_________?
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A. Alfisols

B. Mollisols

C. Entisols

D. Oxisols

2642. Process of mixing of soils is known as_________?
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A. Gleization

B. Laterization

C. The correct option is not present above

D. Lessivage

2643. Specific heat of organic matter is______?
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A. None of these

B. 0.33

C. 0.44

D. 0.22

2644. What percentage of Agriculture in GDP?
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A. 21.5

B. 19.8

C. 18.5

D. 20.9

2645. The relative abundance of three types of rocks ( igneous-metamorphic- sedimentary) in the earths crust is_________?
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A. none of A & B

B. 7.9% 27.7 % 64.4

C. 64.7 % 27.4 % 7.9 %

D. 12.5 % -12.5 % 75%

2646. The instrument used for measuring the photosynthetically active radiations (PAR) is:________?
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A. Pyrheliometer

B. Pyrgeometer

C. Quantom sensor

D. Both A & C

2647. Aridisols cover the largest in Pakistan_______?
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A. 269,810 km<sup>2</sup>

B. 278,910 km<sup>2</sup>

C. 259,710 km2

D. None of these

2648. Tunnel erosion is the form of:__________?
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A. Rill erosion

B. Gully Erosion

C. Rainsplash erosion

D. Sheet erosion

2649. About 40% of the total area of Pakistan is affected by wind erosion. this includes:_________?
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A. All of the above

B. Parts of Mianwali and D.G

C. Thal, Cholistan

D. Tharparkar & vast areas of Balochistan

2650. In low-rainfall areas, huge shifting sand dunes are commonly found, particularly near human habitations. Techniques of afforesting the shifting dunes needed to be implemented. These techniques consist of___________?
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A. Treatment of shifting sand-dunes by fixing barriers in parallel stripes or in a chess-board design, using the local shrub material starting from the crest of the dunes to protect the seedlings from burial or exposure by the blowing of sand.

B. Protection against biotic interference

C. Both a & b

D. None of these

2651. Depending on the percentage of sand, silt, clay, soils are divided into _______ textural classes:
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A. 12

B. 14

C. 13

D. 9

2652. Raising of two or more crops in the same field or in year is called_________?
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A. None of these

B. Harvest cropping

C. Monocropping